GraphLibrary/DrawGraph/Vertex.cs

namespace DrawGraph
{
    public class Vertex
    {
        public int X { get; set; }
        public int Y { get; set; }

        public Vertex(int x, int y)
        {
            X = x;
            Y = y;
        }

        public int CenterByX => (X * 2 + 10) / 2;

        public int CenterByY => (Y * 2 + 10) / 2;

        public static bool Compare(Vertex v1, Vertex v2)
        {
            if (Equals(v1, v2))
                return true;
            if (v1 == v2)
                return true;
            if (v1.X == v2.X && v1.Y == v2.Y)
                return true;
            return false;
        }

    }
}